TWI405932B - Led lamp - Google Patents

Abstract

An LED lamp is provided in the invention. The LED lamp includes a body and a head. The body includes a lampshade, at least a circuit board, a shell, and a rotating base. The head, disposed in one side of the body, includes a power base and terminal. The rotating base includes a first connector. The power base includes a second connector. Wherein, the first connector is inserted and pressed fitted to the second connector. The first connector is 360 degree rotatable around the second connector.

Description

Light-emitting diode lighting

The invention relates to a light-emitting diode lighting fixture, in particular to a 360-degree rotating light-emitting diode lighting fixture.

Since the invention of the King Edison invented the light bulb, humans have progressed from the use of candles and kerosene lighting to the "lights" century. After more than one hundred years of progress, today's lighting tools are not only the original tungsten light bulbs, but in our daily life, we have long relied heavily on a variety of "lighting" of different designs and different principles; Fluorescent lamps, incandescent tubes, halogen lamps, and light-emitting diode lamps have become part of our daily lives.

Among these different lighting tools, a light-emitting diode lamp using a Light Emitting Diode (LED) as a light-emitting element can be said to be the most popular and environmentally-friendly lighting tool. It is available in different sizes and colors for design, can withstand high impact, and has slower brightness decay, extremely low power loss, long life of 50,000 to 100,000 hours, and extremely high illumination. These advantages are unmatched by other luminaires and are the main reason for the popularity of illuminating diode lamps.

Because the LED lamp has many advantages, all major manufacturers in the country have invested a lot of research and development manpower, developed related application products and applied for patent protection. U.S. Patent No. 5,921,660 discloses a rotatable design of a light-emitting diode lamp, which comprises two semi-circular support seats for clamping the light-emitting diode module, so that the light-emitting diode module can be Rotate within a limited angle. However, in the patent, a plurality of light-emitting diode lamps are evenly distributed around the body of the light-emitting diode module, thereby causing The light emitted by the LED illuminator will scatter in all directions. When the user only needs illumination in a certain direction, part of the light will be wasted. In addition, the rotation mechanism of the patent is complicated, and the variety of parts is increased, which increases the cost of manufacturing. Moreover, the design of the light-emitting diode lamp cannot replace the light-emitting diode module at will, and the inconvenience is also increased.

Another U.S. Patent No. 5,726, 535 discloses another rotatable light-emitting diode lamp, which is characterized in that it uses an external rotation contact rotation mode to adjust the direction of illumination by 160 degrees. The patent has a light-emitting diode lamp on both sides. The printed circuit board has its illumination direction pointing forward and backward respectively. When the user only needs illumination in a certain direction, part of the light is wasted. The arrangement of the LEDs on both sides of the printed circuit board also produces higher temperatures, but the patent does not have any heat sinks, which may result in a shortened life of the LED lamp. In addition, the patent's rotation angle is only 160 degrees, which will produce a dead angle on the rotation. Moreover, this patent is not designed to facilitate the replacement of the module at any time, so there is room for improvement.

Combining the above shortcomings, if a light-emitting diode lamp can be designed, the defects of the above two inventions are improved, the illumination direction is concentrated to point to the side requiring greater brightness, the dead angle of rotation is eliminated, the disadvantage of inconvenience of replacement is overcome, and the heat dissipation device is provided. It is the goal of those who have the usual knowledge in this field.

The purpose of the invention is to design a 360 degree unrestricted number of rotations, the concentrated illumination light points to the area where the brightness is required, and the light-emitting diode lighting fixture of the lamp body can be simply replaced.

The invention discloses a light-emitting diode lighting fixture, which comprises a lamp body and a lamp head. The lamp body comprises at least one printed circuit board, a lamp cover, a casing and a rotating base, and the lamp head comprises a power base and a joint component. Wherein, one side of the printed circuit board has a plurality of light-emitting diode lamps, and the lamp cover covers the light-emitting diode lamp, and the outer casing is combined with the lamp cover to fix the printed circuit board. The rotating base is located at a side of the lamp cover and the outer casing to fix the lamp cover and the outer casing. The rotating base further includes a first connecting portion, and the first connecting portion is An outwardly projecting cylinder and including a first electrode and a second electrode. The power base includes a second connecting portion, the second connecting portion is a cylindrical recess and includes a third electrode and a fourth electrode. The connector member is located on the other side of the power supply base and is coupled to the power supply base with respect to the second connection portion.

The first connecting portion is inserted into the second connecting portion and is in a mating state, and the first connecting portion is rotatable 360 degrees relative to the second connecting portion. There are two embodiments in which the first electrode, the second electrode, the third electrode, and the fourth electrode are provided. In one embodiment, the first electrode and the second electrode both surround the sidewall of the first connecting portion, and the third electrode and the fourth electrode both surround the sidewall of the second connecting portion. The first connecting portion is placed in the second connecting portion, and the first electrode and the third electrode are in a ring shape so as to be in rotational contact, and the second electrode and the fourth electrode are in a ring shape so as to be in rotational contact. In another embodiment, the first electrode surrounds the sidewall of the first connecting portion, the second electrode is located at the end of the first connecting portion, the third electrode surrounds the sidewall of the second connecting portion, and the fourth electrode is located The bottom of the second connection. The first connecting portion is placed in the second connecting portion, the first electrode and the third electrode are rotatably contacted by being annular, and the second electrode is in point contact with the fourth electrode.

The invention is characterized in that the lamp body and the lamp head are two independent and conveniently disassembled modules, so that when assembled, the lamp head can be locked on the lamp holder of the lamp with the thread outside the connector element, and the first connection on the lamp body The portion is placed in the second connecting portion of the lamp head to be in a fitted state. After the assembly is completed, the LED lighting fixture can be rotated and contacted by the annularly surrounding electrode on the first connecting portion and the second connecting portion under the condition of use (without turning off the power supply), and the 360-degree unrestricted number of turns can be achieved. The rotation is used to adjust the direction of illumination of the LED lamp, and the illumination light is concentrated to the area where greater brightness is required. Also, in order to prolong the service life of the LED lamp, the present invention is provided with a heat dissipation module to reduce the operating temperature of the printed circuit board and the LED lamp.

In the above-mentioned light-emitting diode lighting fixture, a heat dissipating component having a plurality of fins may be disposed between the printed circuit board and the outer casing, so that the heat dissipating component is closely attached to the back surface of the printed circuit board, and is printed. A layer of thermal grease is applied between the brush circuit board and the heat dissipating component to increase the life of the LED lamp.

In the above-mentioned light-emitting diode lighting fixture, an opening is arranged on the outer casing to enhance the convection effect of air near the heat-dissipating component, thereby increasing heat dissipation efficiency.

In the above-mentioned light-emitting diode lighting fixture, the lampshade can be a transparent or translucent material.

In the above-mentioned light-emitting diode lighting fixture, the number of printed circuit boards may be plural, and the printed circuit boards are adjacently adjacent to each other, and an angle between any two adjacent printed circuit boards is sandwiched.

In the above-mentioned light-emitting diode lighting fixture, the joint member may be an Edison joint with a thread on the outer side.

In order to obtain a clear expression of the features, components, and desired effects of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

L01‧‧‧Lighting diode lighting

L02‧‧‧Lighting diode lighting

L03‧‧‧Lighting diode lighting

L04‧‧‧Lighting diode lighting

1‧‧‧Lamp body

1'‧‧‧Lamp body

1"‧‧‧Lamp body

11‧‧‧Spinning base

111‧‧‧First connection

111A‧‧‧first electrode

111B‧‧‧Second electrode

12‧‧‧ Shell

121‧‧‧ openings

13‧‧‧Heat components

131‧‧‧ Heat sink

14‧‧‧Printed circuit board

14'‧‧‧Printed circuit board

14"‧‧‧Printed circuit board

141‧‧‧Lighting diode lamp

15‧‧‧shade

2‧‧‧ lamp head

21‧‧‧Power base

211‧‧‧Second connection

211A‧‧‧ third electrode

211B‧‧‧fourth electrode

22‧‧‧Connector components

221‧‧‧ thread

3‧‧‧Lamp body

31‧‧‧Spinning base

311‧‧‧First connection

32‧‧‧Shell

35‧‧‧shade

4‧‧‧ lamp head

41‧‧‧Power base

411‧‧‧Second connection

42‧‧‧Connector components

421‧‧‧ thread

1 is an exploded view of a light-emitting diode lighting fixture according to a first embodiment of the present invention; FIG. 2 is a schematic view showing a combination of a light-emitting diode lighting fixture according to a first embodiment of the present invention; FIG. 4 is an exploded view of a light-emitting diode lighting fixture according to a third embodiment of the present invention; and FIG. 5 is a fourth embodiment of the present invention; An example of an exploded view of a light-emitting diode lighting fixture.

Please refer to FIG. 1 . FIG. 1 is an exploded view of a light-emitting diode lighting fixture according to a first embodiment of the present invention. The LED light fixture L01 includes a lamp body 1 and a lamp head 2 . The lamp body 1 includes a lamp cover 15, a printed circuit board 14, a casing 12, and a rotating base 11. The lamp head 2 includes a power base 21 and a joint member 22. As shown, the printed circuit board 14 The middle side has a plurality of light-emitting diode lamps 141. The lamp cover 15 is located on one side of the light-emitting diode lamp 141 to cover the printed circuit board 14. The lamp cover 15 may be transparent or translucent. The outer casing 12 is combined with the lamp cover 15 to secure the printed circuit board 14 therein. In order to increase the life of the LED lamp 141, a heat dissipating component 13 having a plurality of fins 131 is disposed between the printed circuit board 14 and the casing 12, and the heat dissipating component 13 is closely attached to the LED lamp 141. On the other hand, a layer of thermal grease (not shown) is applied between the printed circuit board 14 and the heat dissipating component 13. At the same time, an opening 121 is formed in the outer casing 12 for enhancing the convection effect of the air near the heat sink 131, thereby increasing the heat dissipation efficiency and reducing the operating temperature of the printed circuit board 14 and the light-emitting diode lamp 141. The rotating base 11 is located at the side of the lamp cover 15 and the outer casing 12, thereby fixing and fixing the lamp cover 15 and the outer casing 12. The rotating base 11 further includes a first connecting portion 111, and the first connecting portion 111 is a cylindrical body that protrudes outward. The power base 21 has a second connecting portion 211, which is a cylindrical recess. The connector member 22 is fixed to the power supply base 21 at one end different from the second connection portion 211, and the outer side of the connector member 22 has a thread 221 for locking on the socket of the lamp, the connector member 22 Can be an Edison connector.

Please refer to FIG. 2. FIG. 2 is a schematic diagram showing the combination of the LED lighting fixture according to the first embodiment of the present invention. As shown in FIG. 2, the first connecting portion 111 further includes a first electrode 111A and a second electrode 111B. The first electrode 111A surrounds the sidewall of the first connecting portion 111, and the second electrode is shown. 111B is located at the end of the first connecting portion 111. The second connecting portion 211 further includes a third electrode 211A and a fourth electrode 211B. The third electrode 211A surrounds the sidewall of the second connecting portion 211, and the fourth electrode 211B is located at the bottom of the second connecting portion 211. Here, the first electrode 111A and the third electrode 211A have the same polarity, the second electrode 111B and the fourth electrode 211B have the same polarity, and the first electrode 111A and the second electrode 111B have opposite polarities. As shown in the figure, the LED lighting fixture L01 is composed of two independent and easily disassembled modules, a lamp body 1 and a lamp head 2. When assembled, the lamp head 2 can be locked to the socket of the lamp with the thread 221 on the outside of the connector element 22, and the first connection portion 111 on the lamp body 1 is placed in the second connection portion 211 of the lamp head 2 In a state of cooperation. In this embodiment, since the first electrode 111A and the third electrode 211A are annular, even if the first connecting portion 111 rotates relative to the second connecting portion 211, the first electrode 111A and the third electrode 211A can maintain each other. In the state of contact. 2, since the second electrode 111B and the fourth electrode 211B are respectively located at the end points of the first connecting portion 111 and the second connecting portion 211, even if the first connecting portion 111 rotates relative to the second connecting portion 211 The second electrode 111B and the fourth electrode 211B are still in a state of being in contact with each other. Therefore, when the first connecting portion 111 rotates relative to the second connecting portion 211, the flow of current is not interrupted. Therefore, the LED lighting fixture of the present invention can achieve a 360 degree unrestricted rotation of the lamp body 1 with respect to the lamp head 2 during use, thereby adjusting the direction in which the LED lamp 141 is illuminated. The emitted light is concentrated in areas where greater brightness is required.

Referring to FIG. 3, FIG. 3 is a schematic diagram of a combination of a light-emitting diode lighting fixture according to a second embodiment of the present invention. The LED light-emitting diode L02 has a lamp body 3 and a lamp head 4, and the lamp body 3 A rotating base 31, a casing 32 and a lamp cover 35 are included. The lamp head 4 includes a power base 41 and a joint member 42. As shown in FIG. 1 and FIG. 2, the rotating base 31 includes a first connecting portion 311. The first connecting portion 311 further includes a first electrode 311A and a second electrode 311B. Both the 311A and the second electrode 311B surround the sidewall of the first connecting portion 311. The power supply base 41 includes a second connecting portion 411. The second connecting portion 411 further includes a third electrode 411A and a fourth electrode 411B. The third electrode 411A and the fourth electrode 411B both surround the second connecting portion 411. On the side wall. Here, the first electrode 311A and the third electrode 411A have the same polarity, the second electrode 311B and the fourth electrode 411B have the same polarity, and the first electrode 311A and the second electrode 311B have opposite polarities. In use, since the first electrode 311A and the third electrode 411A are annular, even if the first connecting portion 311 is rotated relative to the second connecting portion 411, the first electrode 311A and the third electrode 411A can remain in phase with each other. The state of contact. Similarly, when the first connecting portion 311 rotates relative to the second connecting portion 411, the second electrode 311B and the fourth electrode 411B can remain in contact with each other. Therefore, the first connecting portion 111 is rotated relative to the second connecting portion 211 When it turns, it does not interrupt the flow of current. Therefore, the light-emitting diode lighting device L02 can achieve the purpose of 360-degree rotation of the lamp body 3 with respect to the lamp head 4 in an unrestricted number of turns under the use condition.

Please refer to FIG. 4. FIG. 4 is an exploded view of a light-emitting diode lighting fixture according to a third embodiment of the present invention. As shown in the figure, referring to FIG. 1, the LED lighting fixture L03 includes two printed circuit boards 14', and other components are the same as those in FIG. 1, and details are not described herein. The two printed circuit boards 14' of the present embodiment are adjacent to each other, and an angle is sandwiched between the two printed circuit boards 14', so that the illumination directions of the LEDs 141 on the two printed circuit boards 14' are different from each other. Therefore, the light-emitting diode lighting fixture L03 can be irradiated to a wider area. Further, by increasing the number of printed circuit boards 14', the number of the light-emitting diode lamps 141 is also increased, and the illumination brightness is also increased.

Please refer to FIG. 5. FIG. 5 is an exploded view of a light-emitting diode lighting fixture according to a fourth embodiment of the present invention. The light-emitting diode lighting fixture L04 includes three printed circuit boards 14", and other components are the same as those in FIG. 1, and will not be described herein. The three printed circuit boards 14" of the present embodiment are adjacently adjacent to each other. An angle is sandwiched between two adjacent printed circuit boards 14". Comparing FIG. 1, FIG. 4 and FIG. 5, the illumination range of the LED illumination lamp L04 is larger than that of the LED illumination lamp L03, and the illumination is two. The illumination range of the polar lighting fixture L03 is larger than that of the LED lighting fixture L01. It can be seen that those skilled in the art can increase the illumination range of the LED lighting fixture by increasing the number of printed circuit boards.

The invention has been described in detail above, but the foregoing is only a preferred embodiment of the invention, and is not intended to limit the scope of the claimed invention. The scope of patent protection is subject to the scope of the patent application and its equivalent fields. Any changes or modifications made by those skilled in the art without departing from the spirit or scope of the present invention are equivalent to the equivalent changes or designs made under the spirit of the disclosure of the present invention. The scope of patent coverage.

L01‧‧‧Lighting diode lighting

1‧‧‧Lamp body

11‧‧‧Spinning base

111‧‧‧First connection

111A‧‧‧first electrode

111B‧‧‧Second electrode

12‧‧‧ Shell

15‧‧‧shade

2‧‧‧ lamp head

21‧‧‧Power base

211‧‧‧Second connection

211A‧‧‧ third electrode

211B‧‧‧fourth electrode

22‧‧‧Connector components

221‧‧‧ thread

Claims (11)

A light-emitting diode lighting fixture comprising: a lamp body comprising: at least one printed circuit board having a plurality of light-emitting diode lamps on one side thereof; a light cover, the light-emitting diode lampshades a housing, in combination with the lamp cover, the printed circuit board is fixed therein; and a rotating base, the rotating base is located at a side of the lamp cover and the outer casing, and the lamp cover and the outer casing are fixedly coupled, the rotating base Further comprising a first connecting portion, the first connecting portion is an outwardly protruding cylinder, the first connecting portion further comprises a first electrode and a second electrode; and a lamp head comprising: a power base The power base includes a second connecting portion, the second connecting portion is a cylindrical recess, and the second connecting portion further includes a third electrode and a fourth electrode; and a joint component, relative to the first a second connecting portion is disposed on the other side of the power base and connected to the power base; wherein the first connecting portion is inserted into the second connecting portion and cooperates with the second connecting portion Setting, and the first company Section relative to the second connecting portion may be rotated 360 degrees, wherein the first electrode is in contact with the third electrode, the fourth electrode and the second electrode contact. The illuminating diode lighting fixture of claim 1, wherein a heat dissipating component is disposed between the printed circuit board and the outer casing. The illuminating diode lighting fixture of claim 2, wherein the heat dissipating component has a plurality of fins. A light-emitting diode lighting fixture according to the second aspect of the patent application, wherein the printed circuit board A heat dissipating paste is applied between the heat dissipating components. The illuminating diode lighting fixture of any one of claims 2 to 4, wherein the housing has an opening through which the heat dissipation effect is enhanced. The illuminating diode illuminating device according to claim 1, wherein the lampshade is made of a transparent or translucent material. The illuminating diode lighting fixture of claim 1, wherein the joint element has a thread on the outside. The illuminating diode lighting fixture of claim 7, wherein the connector component is an Edison connector. The illuminating diode illuminating device of claim 1, wherein the number of the printed circuit boards is plural, and the printed circuit boards are adjacent to each other, and any two adjacent printed circuit boards are interposed therebetween. angle. The illuminating diode illuminating device of claim 1, wherein the first electrode and the second electrode both surround a sidewall of the first connecting portion, and the third electrode and the fourth electrode are both surrounded by On the side wall of the second connecting portion. The illuminating diode illuminating device of claim 1, wherein the first electrode surrounds a sidewall of the first connecting portion, and the second electrode is located at an end of the first connecting portion, the third The electrode surrounds a sidewall of the second connecting portion, and the fourth electrode is located at a bottom of the second connecting portion.